Let's look at the sentence: Dolphins like riding waves like surfers.
It means dolphins enjoy riding waves, similar to how surfers do.
To make it clearer and grammatically correct, we can add a comma:
Dolphins like riding waves, like surfers.
The comma helps show that the phrase "like surfers" is extra information, telling us who also likes riding waves.
Alternatively, you can say:
Dolphins, like surfers, like riding waves.
This sentence says that dolphins, just like surfers, like to ride waves.
So, the corrected sentence is either:
1. Dolphins like riding waves, like surfers.
or
2. Dolphins, like surfers, like riding waves.